OpenVMS? Maybe eventually. When I started
really getting into
 computer work, it was as an operator, on an OpenVMS system...  But since I
 do have the CDs and docs here for D/UX, I'll give it a whirl, and see if it
 fits my needs.
        Does it allow only one user at a time, without the OSF-BASE PAK?
        This afternoon I'll be firing up my 3000/400 to see what's
 installed, before I try throwing D/UX on it... 
Without the PAK you'll be pretty restricted on what you can do, and can
probably only log in on the console.  I suspect you can't even bring up
X-Windows.
OpenVMS has the advantage of being cheaper to run for a Hobbyist, but the
Hobbyist PAKs have to be renewed every year (for free).  Tru64 costs about
$100 for the hobbyist, but that includes a set of CD's and permanent PAK's.
Personally I prefer OpenVMS on my Alpha's as I can run UNIX faster on x86.
                        Zane